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T. BUSHBY.

Machine forMakir ig Pills. No. 35,277. Y Patented. Dec. 29, 1868.

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Patented Dee. 29, 1868.

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sters- THOMAS BUSH'BY, or MANCHESTER. E NGLA ND Letters Patent No. 85,277, dated December 29, 1868; untcllctml Dl'cmnbcr 17, 1868.

IMPROVED PILL-MAKING MACHINE.

The Schedule referred to in these Letters Patent and max-mg part of thesame.

To all whom it may concern:

Be it known that I, THOMAS BUSHJBY, of Manchester, in England, haveinvented anew and improved Pill- Making Machine; and I do hereby declarethat the following is a full, clear, and exact description thereof,which will enable others skilled in'thc art .to make and use the same,reference being bad to the accompanying drawings, forming part of thisspecification, in which- Figure' l is aside view,

Figure 2 is a plan view,

Figure 3 isa side sectional view, and I Figure 4 is a hunt view of myimproved pill-making machine.

Similar letters of reference indicate correspondingparts. i Thisinvention consists in constructing a machine, to which the massorssubstance from-which the pills are to be made is supplied, in theform of a layer or sheet of the properthickness,-and placed upon a tableforming part oi'such machine, and, by self-acting mechanism hereinafterdescribed, made to advancebeneath a verticabreciprocating knife, whichcuts such sheet into strips or bars of the right width to be formed intopills. These bars or strips immediately fall down between as'tationarysegmental-grooved plate and a grooved rcvolving roller. 1 The grooves ofsuch stationary segmental plate and revolving roller being immediatelyopposite and in close contact with one another, and being of an exactlysemicircular shape, together form a series of perfectly parallelcircular grooves, so that immediately the strips or bars fall, they arecaught by the-revolving grooved roller, and out into pieces of theproper size, which, in passing and being rolled between the groovc ofthe roller and stationary segmental plate, are shaped into pills.

A represents the frame-work of the machine, consisting of two sidesbolted together, and supporting between them the table B, and formingbearings for the shaft 0.

Two housings, D D, rise from the top of such framework, to serve asg'u-ides for the reciprocating knife E, which is connected to andactuated direct from the shaft 0, by means of eccentrics F andconnecting-rods G Working upon the pins or studs H, projecting from theends of such reciprocating knife.

1 is a roller keyed upon the shaft 0, having a series of annularsemicircular grooves, K, formed round it, which are arranged as closetogether as possible, and brought to a feather-edge, as illustrated.

L is a segmental metallic plate, secured, at either side, to the innersides of the frame-work, and such segmental plate forms a shell'orcovering-tor a portion of the roller, and is constructed with a similarnumber of semicircular grooves to the roller, which grooves are oppositeto and in close contact with one another.

M'is a feeding-bar, secured to and actuated by the rocking levers N,mounted on the outer sides of the frame-work, in swivels O, m whichthey are also arranged to slide backward and forward.

- The other ends of such rocking -le\'eis have howls, P, mounted uponstuds projecting from two segmental arms, which bowls rest upon cams, Q,keyed to the shaft 0. r,

Projections, R, shown in dotted lines in fig. l, are formed at. the backof each of such lovers, which are raised by the cams S during a certainportion of the revolution of the shaftG, upon which such cams are alsokeyed.

T is a spring impinging upon thc top of the locking levers N, to keepthem down on to the cams.

U is a stripper aflixed across the roller I, to remove any pillswhichmay stick to it while revolving, aud

V is a winch-handle for actuating the machine.

The manner of making pills by this inach inin'ay be thus described:

The mass from which the pills are to be made is placed upon the table B,and motion being .conn'nunicated to the machine by'the winch-handle V,the feeding-bar M immediately draws them-ass forward beneath thereciprocating knife 15, which cuts off a strip orbar of the right width..Meanwhilc the cams S, coming in contact withthe projections B, havecaused the feeding-bar M to rise and disengage itself from the mass,when the cams Q, by. impinging against the bowls P, cause suchiecding-bar to rccede in order to take a fresh gripe of the mass, thestrip or bar cut-oil by the reciprocating knife havingfallcn between thesegmental-grooved plate L and the revolving grooved roller 1, is outinto small pieces, which, in passing and being rolled between thestationary grooves of the segmental plate L and thercvolving groovesofthe roller I, are shaped intopclfcctly spherical pills, which fall outat the bottom of the segmental-grooved plate L,

and if any pills stick to the roller, they are instantly removed by thestripper-plate U.

Having thus described my invention,

I claim as new, and desire to secure by Letters Patentl. Thecombination, with the grooved roller I, of the segmental-grooved plateL,- substantially as and for the purpose described.

2. The combinationof the grooved rollers, segmental plate, and thereciprocating knife, substantially asand for the purpose described.

3. The feeding-mechanism, constructed as described, in combination witha pill-forming mechanism, substantially as and for the purpose setforth.

The above specification of my invention signed by me, this 7th day ofApril, 1868.

' THOMAS BUSHBY.

Witnesses:

JOHN GUY' Wrnsozv, WILLIAM HENRY BAILEY.

